Scale

Scale is a surface engineering term that refers to undesirable impurities or oxide layers on the surface of a metal. These contaminants are usually formed during the manufacturing process or by exposing the metal to high temperatures in an oxidizing atmosphere.

Scale can significantly affect the quality and performance of metal parts by impairing the adhesion of coatings, welded joints or other surface treatments. In addition, scale can degrade the mechanical properties of the metal and result in reduced corrosion resistance.

Various surface engineering methods are used to remove or prevent scale. These include chemical removal techniques, mechanical processing (e.g., grinding or blasting), thermal treatments, and special protective measures to prevent scale formation.

Scale removal is critical in many industries, particularly metalworking, automotive, aerospace and others where high-quality surfaces and precise joints are required. Effective control of scale helps improve the durability, quality and reliability of metal components and products.